Astro Info
GPL astronomy program with color support developed on Unix.
http://astroinfo.sourceforge.net/
Coldsync
Command-line synchronization software for Palm and Visor.
http://www.ooblick.com/software/coldsync/
CryptoPadSlicer
Conduit for the cryptographic MemoPad replacement CryptoPad application for the Palm.
http://www.kybs.de/boris/software.shtml
Java Pilot Desktop
Platform-independent desktop enables communication and data interchange with Palms.
http://www.ctag.de/projects/jpd/index.html
JustInTime
Works with the pilot-link to synchronize the time between Unix desktop and Palm. J-Pilot plugin also available.
http://www.klawitter.de/palm/justintime.html
PalmAMP for XMMS
XMMS plugin to work with the PalmAMP remote control program for WinAMP.
http://student.cosy.sbg.ac.at/~dent/apps/palmamp/
Pilot-Link
Command-line tools for connecting to a Palm to sync, add, delete, move, copy, and manipulate Palm data.
http://www.gnu-designs.com/pilot-link/
Pyrite
A Python library which provides high-level object-oriented access to Palm handhelds and their data.
http://www.pyrite.org/
Syncal
Syncal reads a current ical calendar file, an archived ical calendar file from the last time syncal was run, and a Palm device DateBook database and reconciles them.
http://hopf.math.northwestern.edu/syncal/
pi-address
X11 based address manager for Palm.
http://me.in-berlin.de/~miwie/pia/
pilot2pine
Converts Palm address book to Pine format.
http://www.palmopensource.com/software/#pilot2pine